BE425962A - - Google Patents
Info
- Publication number
- BE425962A BE425962A BE425962DA BE425962A BE 425962 A BE425962 A BE 425962A BE 425962D A BE425962D A BE 425962DA BE 425962 A BE425962 A BE 425962A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH499442X | 1937-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE425962A true BE425962A (xx) |
Family
ID=4516864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE425962D BE425962A (xx) | 1937-02-25 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE425962A (xx) |
| CH (1) | CH194053A (xx) |
| FR (1) | FR832609A (xx) |
| GB (1) | GB499442A (xx) |
| NL (1) | NL54203C (xx) |
-
0
- NL NL54203D patent/NL54203C/xx active
- BE BE425962D patent/BE425962A/xx unknown
-
1937
- 1937-02-25 CH CH194053D patent/CH194053A/de unknown
-
1938
- 1938-01-25 FR FR832609D patent/FR832609A/fr not_active Expired
- 1938-02-16 GB GB4856/38A patent/GB499442A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH194053A (de) | 1937-11-15 |
| GB499442A (en) | 1939-01-24 |
| NL54203C (xx) | |
| FR832609A (fr) | 1938-09-29 |